src/gtk/radiobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        radiobox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "radiobox.h"
  12 #endif
  13
  14 #include "wx/radiobox.h"
  15
  16 #if wxUSE_RADIOBOX
  17
  18 #include "wx/dialog.h"
  19 #include "wx/frame.h"
  20
  21 #include <gdk/gdk.h>
  22 #include <gtk/gtk.h>
  23 #include <gdk/gdkkeysyms.h>
  24
  25 #include "wx/gtk/win_gtk.h"
  26
  27 //-----------------------------------------------------------------------------
  28 // idle system
  29 //-----------------------------------------------------------------------------
  30
  31 extern void wxapp_install_idle_handler();
  32 extern bool g_isIdle;
  33
  34 //-----------------------------------------------------------------------------
  35 // data
  36 //-----------------------------------------------------------------------------
  37
  38 extern bool       g_blockEventsOnDrag;
  39
  40 //-----------------------------------------------------------------------------
  41 // "clicked"
  42 //-----------------------------------------------------------------------------
  43
  44 static void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioBox *rb )
  45 {
  46     if (g_isIdle) wxapp_install_idle_handler();
  47
  48     if (!rb->m_hasVMT) return;
  49     if (g_blockEventsOnDrag) return;
  50
  51     if (rb->m_alreadySent)
  52     {
  53         rb->m_alreadySent = FALSE;
  54         return;
  55     }
  56
  57     rb->m_alreadySent = TRUE;
  58
  59     wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
  60     event.SetInt( rb->GetSelection() );
  61     event.SetString( rb->GetStringSelection() );
  62     event.SetEventObject( rb );
  63     rb->GetEventHandler()->ProcessEvent(event);
  64 }
  65
  66 //-----------------------------------------------------------------------------
  67 // "key_press_event"
  68 //-----------------------------------------------------------------------------
  69
  70 static gint gtk_radiobox_keypress_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxRadioBox *rb )
  71 {
  72     if (g_isIdle)
  73         wxapp_install_idle_handler();
  74
  75     if (!rb->m_hasVMT) return FALSE;
  76     if (g_blockEventsOnDrag) return FALSE;
  77
  78     if ((gdk_event->keyval != GDK_Up) &&
  79         (gdk_event->keyval != GDK_Down) &&
  80         (gdk_event->keyval != GDK_Left) &&
  81         (gdk_event->keyval != GDK_Right))
  82     {
  83         return FALSE;
  84     }
  85
  86     wxNode *node = rb->m_boxes.Find( (wxObject*) widget );
  87     if (!node)
  88     {
  89         return FALSE;
  90     }
  91
  92     gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
  93
  94     if ((gdk_event->keyval == GDK_Up) ||
  95         (gdk_event->keyval == GDK_Left))
  96     {
  97         if (node == rb->m_boxes.First())
  98             node = rb->m_boxes.Last();
  99         else
 100             node = node->Previous();
 101     }
 102     else
 103     {
 104         if (node == rb->m_boxes.Last())
 105             node = rb->m_boxes.First();
 106         else
 107             node = node->Next();
 108     }
 109
 110     GtkWidget *button = (GtkWidget*) node->Data();
 111
 112     gtk_widget_grab_focus( button );
 113
 114     return TRUE;
 115 }
 116
 117 //-----------------------------------------------------------------------------
 118 // wxRadioBox
 119 //-----------------------------------------------------------------------------
 120
 121 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
 122
 123 wxRadioBox::wxRadioBox()
 124 {
 125 }
 126
 127 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
 128                          const wxPoint &pos, const wxSize &size,
 129                          int n, const wxString choices[], int majorDim,
 130                          long style, const wxValidator& validator,
 131                          const wxString &name )
 132 {
 133     m_alreadySent = FALSE;
 134     m_needParent = TRUE;
 135     m_acceptsFocus = TRUE;
 136
 137     if (!PreCreation( parent, pos, size ) ||
 138         !CreateBase( parent, id, pos, size, style, validator, name ))
 139     {
 140         wxFAIL_MSG( wxT("wxRadioBox creation failed") );
 141         return FALSE;
 142     }
 143
 144     m_widget = gtk_frame_new( title.mbc_str() );
 145
 146     m_majorDim = majorDim;
 147
 148     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
 149
 150     wxString label;
 151     GSList *radio_button_group = (GSList *) NULL;
 152     for (int i = 0; i < n; i++)
 153     {
 154         if ( i != 0 )
 155             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 156
 157         label.Empty();
 158         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 159         {
 160             if ( *pc != wxT('&') )
 161                 label += *pc;
 162         }
 163
 164         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, label.mbc_str() ) );
 165
 166         gtk_signal_connect( GTK_OBJECT(m_radio), "key_press_event",
 167            GTK_SIGNAL_FUNC(gtk_radiobox_keypress_callback), (gpointer)this );
 168
 169         m_boxes.Append( (wxObject*) m_radio );
 170
 171         ConnectWidget( GTK_WIDGET(m_radio) );
 172
 173         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 174
 175         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 176             GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 177
 178         gtk_pizza_put( GTK_PIZZA(m_parent->m_wxwindow),
 179                          GTK_WIDGET(m_radio),
 180                          m_x+10, m_y+10+(i*24), 10, 10 );
 181     }
 182
 183     m_parent->DoAddChild( this );
 184
 185     PostCreation();
 186
 187     ApplyWidgetStyle();
 188
 189     SetLabel( title );
 190
 191     SetFont( parent->GetFont() );
 192
 193     wxSize ls = LayoutItems();
 194
 195     wxSize newSize = size;
 196     if (newSize.x == -1) newSize.x = ls.x;
 197     if (newSize.y == -1) newSize.y = ls.y;
 198     SetSize( newSize.x, newSize.y );
 199
 200     SetBackgroundColour( parent->GetBackgroundColour() );
 201     SetForegroundColour( parent->GetForegroundColour() );
 202
 203     Show( TRUE );
 204
 205     return TRUE;
 206 }
 207
 208 wxRadioBox::~wxRadioBox()
 209 {
 210     wxNode *node = m_boxes.First();
 211     while (node)
 212     {
 213         GtkWidget *button = GTK_WIDGET( node->Data() );
 214         gtk_widget_destroy( button );
 215         node = node->Next();
 216     }
 217 }
 218
 219 void wxRadioBox::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 220 {
 221     wxWindow::DoSetSize( x, y, width, height, sizeFlags );
 222
 223     LayoutItems();
 224 }
 225
 226 wxSize wxRadioBox::LayoutItems()
 227 {
 228     int x = 7;
 229     int y = 15;
 230
 231     if ( m_majorDim == 0 )
 232     {
 233         // avoid dividing by 0 below
 234         wxFAIL_MSG( wxT("dimension of radiobox should not be 0!") );
 235
 236         m_majorDim = 1;
 237     }
 238
 239     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 240
 241     wxSize res( 0, 0 );
 242
 243     int num_of_cols = 0;
 244     int num_of_rows = 0;
 245     if (HasFlag(wxRA_SPECIFY_COLS))
 246     {
 247         num_of_cols = m_majorDim;
 248         num_of_rows = num_per_major;
 249     }
 250     else
 251     {
 252         num_of_cols = num_per_major;
 253         num_of_rows = m_majorDim;
 254     }
 255
 256     if ( HasFlag(wxRA_SPECIFY_COLS) ||
 257          (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
 258     {
 259         for (int j = 0; j < num_of_cols; j++)
 260         {
 261             y = 15;
 262
 263             int max_len = 0;
 264             wxNode *node = m_boxes.Nth( j*num_of_rows );
 265             for (int i1 = 0; i1< num_of_rows; i1++)
 266             {
 267                 GtkWidget *button = GTK_WIDGET( node->Data() );
 268                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 269                 GdkFont *font = m_widget->style->font;
 270                 int len = 22+gdk_string_measure( font, label->label );
 271                 if (len > max_len) max_len = len;
 272
 273                 gtk_pizza_move( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 274                 y += 22;
 275
 276                 node = node->Next();
 277                 if (!node) break;
 278             }
 279
 280             // we don't know the max_len before
 281
 282             node = m_boxes.Nth( j*num_of_rows );
 283             for (int i2 = 0; i2< num_of_rows; i2++)
 284             {
 285                 GtkWidget *button = GTK_WIDGET( node->Data() );
 286
 287                 gtk_pizza_resize( GTK_PIZZA(m_parent->m_wxwindow), button, max_len, 20 );
 288
 289                 node = node->Next();
 290                 if (!node) break;
 291             }
 292
 293             if (y > res.y) res.y = y;
 294
 295             x += max_len + 2;
 296         }
 297
 298         res.x = x+4;
 299         res.y += 9;
 300     }
 301     else
 302     {
 303         int max = 0;
 304
 305         wxNode *node = m_boxes.First();
 306         while (node)
 307         {
 308             GtkButton *button = GTK_BUTTON( node->Data() );
 309             GtkLabel *label = GTK_LABEL( button->child );
 310
 311             GdkFont *font = m_widget->style->font;
 312             int len = 22+gdk_string_measure( font, label->label );
 313             if (len > max) max = len;
 314
 315             node = node->Next();
 316         }
 317
 318         node = m_boxes.First();
 319         while (node)
 320         {
 321             GtkWidget *button = GTK_WIDGET( node->Data() );
 322
 323             gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 324             x += max;
 325
 326             node = node->Next();
 327         }
 328         res.x = x+4;
 329         res.y = 40;
 330     }
 331
 332     return res;
 333 }
 334
 335 bool wxRadioBox::Show( bool show )
 336 {
 337     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 338
 339     if (!wxControl::Show(show))
 340     {
 341         // nothing to do
 342         return FALSE;
 343     }
 344
 345     if ((m_windowStyle & wxNO_BORDER) != 0)
 346         gtk_widget_hide( m_widget );
 347
 348     wxNode *node = m_boxes.First();
 349     while (node)
 350     {
 351         GtkWidget *button = GTK_WIDGET( node->Data() );
 352
 353         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 354
 355         node = node->Next();
 356     }
 357
 358     return TRUE;
 359 }
 360
 361 int wxRadioBox::FindString( const wxString &s ) const
 362 {
 363     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 364
 365     int count = 0;
 366
 367     wxNode *node = m_boxes.First();
 368     while (node)
 369     {
 370         GtkButton *button = GTK_BUTTON( node->Data() );
 371
 372         GtkLabel *label = GTK_LABEL( button->child );
 373         if (s == label->label) return count;
 374         count++;
 375
 376         node = node->Next();
 377     }
 378
 379     return -1;
 380 }
 381
 382 void wxRadioBox::SetFocus()
 383 {
 384     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 385
 386     if (m_boxes.GetCount() == 0) return;
 387
 388     wxNode *node = m_boxes.First();
 389     while (node)
 390     {
 391         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 392         if (button->active)
 393         {
 394             gtk_widget_grab_focus( GTK_WIDGET(button) );
 395             return;
 396         }
 397         node = node->Next();
 398     }
 399
 400 }
 401
 402 void wxRadioBox::SetSelection( int n )
 403 {
 404     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 405
 406     wxNode *node = m_boxes.Nth( n );
 407
 408     wxCHECK_RET( node, wxT("radiobox wrong index") );
 409
 410     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 411
 412     GtkDisableEvents();
 413
 414     gtk_toggle_button_set_state( button, 1 );
 415
 416     GtkEnableEvents();
 417 }
 418
 419 int wxRadioBox::GetSelection(void) const
 420 {
 421     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 422
 423     int count = 0;
 424
 425     wxNode *node = m_boxes.First();
 426     while (node)
 427     {
 428         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 429         if (button->active) return count;
 430         count++;
 431         node = node->Next();
 432     }
 433
 434     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 435
 436     return -1;
 437 }
 438
 439 wxString wxRadioBox::GetString( int n ) const
 440 {
 441     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 442
 443     wxNode *node = m_boxes.Nth( n );
 444
 445     wxCHECK_MSG( node, wxT(""), wxT("radiobox wrong index") );
 446
 447     GtkButton *button = GTK_BUTTON( node->Data() );
 448     GtkLabel *label = GTK_LABEL( button->child );
 449
 450     return wxString( label->label );
 451 }
 452
 453 wxString wxRadioBox::GetLabel( int item ) const
 454 {
 455     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 456
 457     return GetString( item );
 458 }
 459
 460 void wxRadioBox::SetLabel( const wxString& label )
 461 {
 462     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 463
 464     wxControl::SetLabel( label );
 465
 466     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 467 }
 468
 469 void wxRadioBox::SetLabel( int item, const wxString& label )
 470 {
 471     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 472
 473     wxNode *node = m_boxes.Nth( item );
 474
 475     wxCHECK_RET( node, wxT("radiobox wrong index") );
 476
 477     GtkButton *button = GTK_BUTTON( node->Data() );
 478     GtkLabel *g_label = GTK_LABEL( button->child );
 479
 480     gtk_label_set( g_label, label.mbc_str() );
 481 }
 482
 483 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 484 {
 485     wxFAIL_MSG(wxT("wxRadioBox::SetLabel not implemented."));
 486 }
 487
 488 bool wxRadioBox::Enable( bool enable )
 489 {
 490     if ( !wxControl::Enable( enable ) )
 491         return FALSE;
 492
 493     wxNode *node = m_boxes.First();
 494     while (node)
 495     {
 496         GtkButton *button = GTK_BUTTON( node->Data() );
 497         GtkWidget *label = button->child;
 498         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 499         gtk_widget_set_sensitive( label, enable );
 500         node = node->Next();
 501     }
 502
 503     return TRUE;
 504 }
 505
 506 void wxRadioBox::Enable( int item, bool enable )
 507 {
 508     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 509
 510     wxNode *node = m_boxes.Nth( item );
 511
 512     wxCHECK_RET( node, wxT("radiobox wrong index") );
 513
 514     GtkButton *button = GTK_BUTTON( node->Data() );
 515     GtkWidget *label = button->child;
 516     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 517     gtk_widget_set_sensitive( label, enable );
 518 }
 519
 520 void wxRadioBox::Show( int item, bool show )
 521 {
 522     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 523
 524     wxNode *node = m_boxes.Nth( item );
 525
 526     wxCHECK_RET( node, wxT("radiobox wrong index") );
 527
 528     GtkWidget *button = GTK_WIDGET( node->Data() );
 529
 530     if (show)
 531         gtk_widget_show( button );
 532     else
 533         gtk_widget_hide( button );
 534 }
 535
 536 wxString wxRadioBox::GetStringSelection() const
 537 {
 538     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 539
 540     wxNode *node = m_boxes.First();
 541     while (node)
 542     {
 543         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 544         if (button->active)
 545         {
 546             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 547             return label->label;
 548         }
 549         node = node->Next();
 550     }
 551
 552     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 553     return wxT("");
 554 }
 555
 556 bool wxRadioBox::SetStringSelection( const wxString &s )
 557 {
 558     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 559
 560     int res = FindString( s );
 561     if (res == -1) return FALSE;
 562     SetSelection( res );
 563
 564     return TRUE;
 565 }
 566
 567 int wxRadioBox::Number() const
 568 {
 569     return m_boxes.Number();
 570 }
 571
 572 int wxRadioBox::GetNumberOfRowsOrCols() const
 573 {
 574     return 1;
 575 }
 576
 577 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 578 {
 579     wxFAIL_MSG(wxT("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 580 }
 581
 582 void wxRadioBox::GtkDisableEvents()
 583 {
 584     wxNode *node = m_boxes.First();
 585     while (node)
 586     {
 587         gtk_signal_disconnect_by_func( GTK_OBJECT(node->Data()),
 588            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 589
 590         node = node->Next();
 591     }
 592 }
 593
 594 void wxRadioBox::GtkEnableEvents()
 595 {
 596     wxNode *node = m_boxes.First();
 597     while (node)
 598     {
 599         gtk_signal_connect( GTK_OBJECT(node->Data()), "clicked",
 600            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 601
 602         node = node->Next();
 603     }
 604 }
 605
 606 void wxRadioBox::ApplyWidgetStyle()
 607 {
 608     SetWidgetStyle();
 609
 610     gtk_widget_set_style( m_widget, m_widgetStyle );
 611
 612     wxNode *node = m_boxes.First();
 613     while (node)
 614     {
 615         GtkWidget *widget = GTK_WIDGET( node->Data() );
 616         gtk_widget_set_style( widget, m_widgetStyle );
 617
 618         GtkButton *button = GTK_BUTTON( node->Data() );
 619         gtk_widget_set_style( button->child, m_widgetStyle );
 620
 621         node = node->Next();
 622     }
 623 }
 624
 625 #if wxUSE_TOOLTIPS
 626 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 627 {
 628     wxNode *node = m_boxes.First();
 629     while (node)
 630     {
 631         GtkWidget *widget = GTK_WIDGET( node->Data() );
 632         gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 633         node = node->Next();
 634     }
 635 }
 636 #endif // wxUSE_TOOLTIPS
 637
 638 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 639 {
 640     if (window == m_widget->window) return TRUE;
 641
 642     wxNode *node = m_boxes.First();
 643     while (node)
 644     {
 645         GtkWidget *button = GTK_WIDGET( node->Data() );
 646
 647         if (window == button->window) return TRUE;
 648
 649         node = node->Next();
 650     }
 651
 652     return FALSE;
 653 }
 654
 655 #endif